=== Submission form === The Flavour Lattice Averaging Group (FLAG) would like to inform you that the deadline for publications to be included in the next review is 30 April, 2021. We expect to make the next FLAG Review public in October, 2021. Quantities to be reviewed include the light and heavy quark masses, kaon and pion decay constants and form factors, low-energy constants of chiral perturbation theory, kaon mixing parameters, D-meson decay constants and form factors, B-meson decay constants, mixing parameters and form factors, the strong coupling alpha_s, quantities related to nuclear matrix elements, and quantities related to scale setting. The inclusion of scale setting quantities is new in this edition of FLAG. We plan to review all relevant papers that are published on or before the '''30 April, 2021 closing date'''. As usual, the working groups will do their best to search the literature for relevant work; however, we now provide a form to alert working groups to your papers and to ensure that your work is not missed. The form is accessible [[https://forms.gle/7jLGvnYnhoroMX7P6|here|target="_blank"]].